نتایج جستجو برای: deformation based methods

تعداد نتایج: 4316571  

2006
Dong Xu Hongxin Zhang Hujun Bao

In this paper, we propose a novel mesh deformation approach via manipulating differential properties non-uniformly. Guided by user-specified material properties, our method can deform the surface mesh in a non-uniform way while previous deformation techniques are mainly designed for uniform materials. The non-uniform deformation is achieved by material-dependent gradient field manipulation and ...

Journal: :IEEE Transactions on Visualization and Computer Graphics 2008

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
محمدمهدی کسایی حسن مسلمی نائینی مهدی سلمانی تهرانی روح اله عزیزی تفتی عماد رحیمی

cage roll forming is one of the new methods of cold roll forming process which is widely used for producing erw pipes. in addition to less production cost and time, using cage roll forming provides smooth deformation on the strip. few studies can be found about cage roll forming because of its complexity, and the available knowledge is more experience-based and not science-based. in this paper,...

Journal: :Computer-Aided Design 2013
Gang Xu Kin-Chuen Hui Wenbing Ge Guozhao Wang

Curve-pair based deformation is an extension of axial deformation for providing more intuitive and convenient control of object deformation. In this paper, we investigate the problem of direct manipulation of curve-pair based deformation with geometric constraints. With different objective functions, two kinds of constrained optimization problems are derived from the direct manipulation problem...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1393

this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...

2008
Zhang Guo-hui

It introduces the methods of deformation monitoring based on 3D laser scanner. The point clouds obtained by multi-period scanning for deformation monitored object are registered. The coordinate system of point cloud is unified. Constraint stability is tested through two methods. The deformation and trends are analyzed according to the variations of coordinates of center point modeled targets an...

2006
Wolfgang Grieskamp

For half a decade model-based testing has been applied at Microsoft in the internal development process. Though a success story compared to other formal quality assurance approaches like verification, a break-through of the technology on a broader scale is not in sight. What are the obstacles? This paper describes the application of MBT at Microsoft, discusses the problems in the adoption, and ...

2012
Santiago Ontañón Enric Plaza

While similarity and retrieval in case-based reasoning (CBR) have received a lot of attention in the literature, other aspects of CBR, such as case reuse are less understood. Specifically, we focus on one of such, less understood, problems: knowledge transfer. The issue we intend to elucidate can be expressed as follows: what knowledge present in a source case is transferred to a target problem...

2012
Santiago Ontañón Enric Plaza

While similarity and retrieval in case-based reasoning (CBR) have received a lot of attention in the literature, other aspects of CBR, such as case reuse are less understood. Specifically, we focus on one of such, less understood, problems: knowledge transfer. The issue we intend to elucidate can be expressed as follows: what knowledge present in a source case is transferred to a target problem...

Journal: :international journal of iron and steel society of iran 0
m. rakhshkhorshid department of mechanical and materials engineering, birjand university of technology, south khorasan, iran h. rastegari department of mechanical and materials engineering, birjand university of technology, south khorasan, iran

many efforts have been made to model the the hot deformation (dynamic recrystallization) flow curves of different materials. phenomenological constitutive models, physical-based constitutive models and artificial neural network (ann) models are the main methods used for this purpose. however, there is no report on the modeling of warm deformation (dynamic spheroidization) flow curves of any kin...

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